EP0610500B1 - Baumaschine - Google Patents

Baumaschine Download PDF

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Publication number
EP0610500B1
EP0610500B1 EP19920918704 EP92918704A EP0610500B1 EP 0610500 B1 EP0610500 B1 EP 0610500B1 EP 19920918704 EP19920918704 EP 19920918704 EP 92918704 A EP92918704 A EP 92918704A EP 0610500 B1 EP0610500 B1 EP 0610500B1
Authority
EP
European Patent Office
Prior art keywords
door
operation room
outer side
turning
turning table
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19920918704
Other languages
English (en)
French (fr)
Other versions
EP0610500A4 (de
EP0610500A1 (de
Inventor
Mitsuhisa Shinsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Publication of EP0610500A4 publication Critical patent/EP0610500A4/de
Publication of EP0610500A1 publication Critical patent/EP0610500A1/de
Application granted granted Critical
Publication of EP0610500B1 publication Critical patent/EP0610500B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/0486—Special type
    • B60J5/0487—Special type simplified doors related to cabins of, e.g. golf carts, tractors, jeeps, cranes, forklifts, etc.
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/06—Doors arranged at the vehicle sides slidable; foldable
    • B60J5/062—Doors arranged at the vehicle sides slidable; foldable for utility vehicles or public transport
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E02F9/163—Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure [FOPS]; Roll over protection structure [ROPS]

Definitions

  • the present invention relates to a construction machine, more specifically, an operation room of a construction machine such as a power shovel which has a turning table.
  • a hydraulic power shovel has a turning table 22 on a crawler 21 as shown, for example, in Fig. 6 and is provided with an operation room 23, an engine room 24 and a collapsible working machine 25.
  • the straight-shaped operation room 23 installed on such a vehicle is located off the center of the turning table 22 as shown, for example, in Figs. 7 and 8, and a door 26 of this operation room 23 for accessing of an operator is adapted to be opened by turning it in an arrow direction as shown in Fig. 7 in case of a hinged type door and by sliding it up to a position shown with a 2-dotted broken line as shown in Fig. 8 in case of a slide type door.
  • An object of the present invention mace in view of the above-described problem is to prevent deviation of the door from its turning radius when the door is opened while reserving a size of the door opening and provide an operation room of a vehicle having an upper turning body which is capable of providing a large indoor space, thereby eliminating defects of the related background art.
  • the present invention specifies a construction machine comprising a turning table, a working equipment and an operation cabin.
  • an outer side of said operation cabin is located at an opposite side to a boom of said working equipment installed on said turning table of said construction machine and is formed into an outwardly curved arc including door, said door formed into the outwardly curved arc is provided to be freely slidable and is controlled to be within the turning radius of said turning table along said outer side of said operation cabin when the door is in the opened position; and wherein a plurality of rails are provided on said outer side of said operation cabin (2) and a plurality of rollers (7,8,9) are provided on the inner side of said door which are always engaged with said plurality of rails to permit free sliding of said door.
  • the rollers provided on the door are engaged with the rails provided at the side of the operation room and therefore the door can be opened or closed along with movement of the rollers in the rails.
  • the door stays within the turning radius of the turning table and can avoid collisional contact with an external obstacle even when the turning table is turned around.
  • the present invention is described, referring to the embodiments shown in Figs. 1 to 5.
  • the lateral side 2a of the operation room 2 which is located at the opposite side to the boom of the working equipment installed on the turning table 1 shown in the drawings is formed into an outwardly curved arc including the door.
  • An upper rail 4 is installed on the upper part of the inner lateral side 2a of the operation room, a lower rail 5 is installed on the lower part of the inner lateral side and a center rail 6 is installed at the center of the outer side and an upper roller 7, a lower roller 8 and a center roller 9 which is always engaged with the rails to make the door 3 to be freely slidable are provided on the door 3 whereby in the opened position, the door 3 is limited within the turning radius R of the turning table 1 along the outer side of the operation room 2.
  • the outer side 2a of the operation room is formed as a vertically longer opening 2b which has a larger width than a conventional type (the height is as same as conventional) because the front half of the outer side uses an arc profile to install the door 3 and the rear half is formed as a side wall 2c.
  • An upper rail 4 of a specified length which has a groove type section and is curved in the longitudinal direction is horizontally provided at an upper center of the inner side of the operation room 2 near the ceiling of the outer side 2a and a similar lower rail 5 is provided at a lower part of the inner side so that it is located at a fronter position than the upper rail 4.
  • a groove type center rail 6 is provided at the center of the inner side wall 2c in the horizontal direction.
  • the door 3 is formed in a size larger than the opening 2b and is provided with an upper roller 7 which has a roller 7a at its extreme end for engaging with the groove of the upper rail 4 at the upper center of the its inner side and a lower roller 8 which has a roller 8a for engaging with the groove of the lower rail 5 at the lower front end of its inner side.
  • a center roller 9 which has a roller 9a for engaging with the groove of the center rail 6 is provided at the rear end of the center of the inner side. Accordingly, the door 3 is installed on the operation cabin by engaging rollers 7a, 8a and 9a with rails 4, 5 and 6 as shown with a 2-dotted broken line in Fig. 2.
  • the door 3 of the operation room 2 is opened and closed along a locus as shown in Fig. 2. Specifically, for closing the door 3, the front edge of the door 3 is gradually aligned with the outer side 2a of the operation room 2 while moving the door 3 in parallel, with the outer side 2a. Accordingly, when the door 3 is in the opened position, the full face of the door 3 is overlapped with the arc surface of the outer side 2a of the operation room 2 and the door 3 is held within the turning radius R as shown.
  • This movement of the door 3 is carried out while being controlled in the horizontal direction when the upper roller 7 is engaged with the upper rail 4, the center roller 9 is engaged with the center rail 6 and the lower roller 8 is engaged with the lower rail 5.
  • the center rail 6 has a guide 6a and the center roller 9 has a guide roller 9a and a roller 9b to make the roller 9a receive a load during movement of the door 3, and the guide roller 9b is engaged with the guide 6a to prevent the door 3 from coming off from the operation room 2.
  • the center roller 9 rotates around the shaft 9c as a pivot to ensure smooth sliding of the door 3.
  • the operation room of a construction machine according to the present invention is useful as an operation room for construction machines, particularly, excavating machines each having a turning table as power shovels.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Support Devices For Sliding Doors (AREA)

Claims (1)

  1. Baumaschine, umfassend eine Drehplattform, eine Arbeitsausrüstung und einen Leitstand,
    worin ein Außenwandabschnitt (2a) des Leitstandes (2) auf der Gegenseite eines auf der Drehplattform der Baumaschine angebrachten Auslegers der Arbeitsausrüstung angeordnet ist und einschließlich der Tür (3) einen auswärts gekrümmten Bogen bildet, wobei die in den auswärts gekrümmten Bogen geformte Tür (3) frei gleitend ausgelegt ist und so geführt wird, daß sie sich innerhalb des Drehradius der Drehplattform (1) befindet und am Außenwandabschnitt (2a) des Leitstandes (2) anliegt, wenn sich die Tür in der geöffneten Stellung befindet; und
    worin am Außenwandabschnitt des Leitstandes (2) eine Anzahl von Schienen (4, 5 und 6) und an der Innenseite der Tür eine Anzahl von Rollen (7, 8 und 9), die sich stets im Eingriff mit der Anzahl Schienen (4, 5 und 6) befinden, vorgesehen sind, um das freie Gleiten der Tür zu gestatten.
EP19920918704 1992-09-04 1992-09-04 Baumaschine Expired - Lifetime EP0610500B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1992/001133 WO1994005865A1 (en) 1992-09-04 1992-09-04 Operation room of construction machine

Publications (3)

Publication Number Publication Date
EP0610500A4 EP0610500A4 (de) 1994-06-06
EP0610500A1 EP0610500A1 (de) 1994-08-17
EP0610500B1 true EP0610500B1 (de) 1998-01-28

Family

ID=14042527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920918704 Expired - Lifetime EP0610500B1 (de) 1992-09-04 1992-09-04 Baumaschine

Country Status (3)

Country Link
EP (1) EP0610500B1 (de)
DE (1) DE69224296T2 (de)
WO (1) WO1994005865A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6279988B1 (en) * 2000-09-29 2001-08-28 Komatsu Utility Europe S.P.A. Cab for earth-moving machines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5424425Y2 (de) * 1975-02-14 1979-08-18
JPH076217B2 (ja) * 1987-10-09 1995-01-30 日立建機株式会社 全旋回式作業機
JP2601681B2 (ja) * 1988-03-10 1997-04-16 日立建機株式会社 全旋回式作業機
JPH03244781A (ja) * 1990-02-21 1991-10-31 Iseki & Co Ltd パワーショベルのキャビンのプルアツプウインド
US5096253A (en) * 1990-05-31 1992-03-17 Samsung Heavy Industries, Co., Ltd. Cabs of heavy construction vehicles with an openable front window and a locking device therefor

Also Published As

Publication number Publication date
WO1994005865A1 (en) 1994-03-17
EP0610500A4 (de) 1994-06-06
DE69224296D1 (de) 1998-03-05
EP0610500A1 (de) 1994-08-17
DE69224296T2 (de) 1998-07-23

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